Selective mechanical operator.



.E. R. GILL.

SELECTIVE MECHANICAL OPERATOR.

APPLICATION FILED MAJ! 25, M05.

3 SHEETS-SHEET 1.

Suva mica E. R. GILL. snmcmx MBGEANIOAL OPERATOR.

. APPLIGATION TILED my 25, 1905. 1,105,194.

Patented July 28, 1914:.

s sums-SHEET 2,

R. GILL.

SELECTIVE MEOHANIGALI OPERATOR.

APPLICATION FILED MAY 25, 1905.

Patented Jlily 28, 1914,

3 SHEETS-SHEET 3.

- sively stepped by each one of e coileliy er omen STl-fiilhlfii PATENT GFFIGE to ones, or YDNBIERS; NEW YQEK, ASSIGNQR, so? MESNE Hem SWITCH SIGNAL oeieezms, e ooeeozm'oxom' ou meme.

memes Specification of hikers Pefient,

Poteiitefl July 1914.

smeimm filed. m 25, mos. Serial m. 2e2,1e5.

To aZZ whom it may ooncev'n Be itlcuown that I, Emvm R. GILL, e citizen of the United States, residing in. the city of Yonkers, counayofi l'i estchestei, and State of New York, have invented a, eerteiu new and useful Improvement in Seleol-ive Mechanical 0 emtors, of which the following is a speci cation. I

This invention relates e0 means whereby a machine element, such as a Wheel or other mechanical device, may be indirectly brought into a predeterminecl position fo 'any desirecl purpose. i The invention is applicable to the opere tion of combination looks, the sending of signals, ringing of bells, fixing of explosives and likeuses.

This invention is particularly useful in its preferred forms for eui oloymenfi in cookies-- tion with telephonic and telegrupliio eye toms. Itoan be operated by l euzl or electricaily, and, in the letteze cese, em ineefiuite number of similar instruments can l pleoeol onthe some CII'CIHE and they can each be opeluted by a key at any point on such circuit without interfering; with like others.

As will be (levelopeci lioieiuefier, I aim to provide an apparatus 11.; WillCll an. element, such as a u'lieeL may be octuefi ecl by impulse means in such a Way that ii, may be progresrangecl series of impulses of difiereni characteristies, end so il'ia'i'. if an impulse oi? a, given character is made out of its pi'oper code relation the steeping Will be interrupted, and-the wheel z elun'zezi to normal.-

I Although I have sggeciileolly illusimteclj herein a prefei i'ecl form which is particularly well adapted for iele zmpliio use, it is to be understood that this invention is not limited to such use one; that in certain embodiments it may be operetecl by any other desired agency; aeweli as by eleolzi ieioy With this ur'uiersfleucliug, I shell first describe the specific form: in question. with certain modifications illusbreoeil indetail, and shall then explain the advantages of the inveution embodied therein, noting certain further forms which my broad invention may take. N g In the accompanying drawings, F eece 1 shows a, selective telegraphicslgnel embody ing my invention, said figure being a Sillfi? elevation thereof with :1 portion of El" smugporting f 'ameworli removed so permit";

illustretiouyl ig. 2 is a plan View of the some with the magnet removed; Fig. 3 is'an end elevation of the some; Figs. 4 and 5 are detail views illustrating the preferred operosion oftlie drop; Figs. 6, 'Z and 8 are deem}. perspective views illustrating the reteim mg and releasing" mechanism in three diffez-out pwilionslig. 9 is a oliagram of circuits preferably employed with this form ofmy invention; and Fig 10 is a side View of certain cleteils. l

The meiuessentialo1? ibis invention is'e 1 1&(7l2i116 element intended to be brought to e predetermined,- position, whatever the form, substance or mode ofmovemem; of said meohine elemensend whatever eml is-subserved' thereby. In izhe preferred form about to be cleseriheel this machine element is :1 toothed sector embracing zmyeuimble are, whether a. complete circle, as shown or not; and in my claims theword. seceor is intended to include a complete wheel ar d it is one of the novel features of the embodiment shown that meeiisgfoi moving such a Wheel or seelor by uniform steps are combined with means ior turning the Wheel, or sector buckwercl to a normal starting point proper times. i The importance of this feature of k ihe invention will appear hereinafter. I

The selective lelegz'opliio cull or signal herein specifically shown and described mounted upon o base 1, carrying four i e-rminels or binding posis 2, 3 i and 5 at the four corners of the Working parts. The,

main operating magnet 6 is mounted on said base ingot-her with the selective mechanism carried by 'the metallic framework Z.- The bowecl spring 11 engages with'zlie abutment l2, temling continuously to throw the urmecure outward as m Fig. 1.

The machine element to be opeieiecl tekes the form of a toothed wheel 13, ,mounteoljonithe shaft 14 and supplie-kl Willi" efreturniug' cleviee in the form of a, spring 15 Whichlends always to return thee heel to EllQ-Illifrfilill starting point, approximately as shown in 'lfigxl. With theul'atinwheel 13' there moves arm 16, car 'ying a pin 1? and when, by proper manipulation, the wheel has been turned forWuZ-(l 1n eclookwise clireetioiu as shown in Fig; 1- said pin lifts the Wire arm 18 which, by turning the shaft 19 and lifting the wire arm 20, releases the drop 21 from the retaining book 22 on said arm 20 (see Figs. 1, 2 and 3). This operation of the drop preferably rings a bell as hereinafter described, but any other signal operated by proper movement of the -pin.17 would be within this branch of my invention.

The instrument which directly impels the main wheel is the main pawl 23 which depends from a pivotal support on the long lever 24, pivoted at 25, which pawl is held toward the main wheel as by the spring 26 on said lever. At the same time the wire arm' 27 prevents said spring from pushing the pawl too far over. The main operating lever 24, is raised by a long depending which in the drawings takesthe form of the pawl 29 pivoted at 30 so that its outer tip falls by gravity or otherwise behind successive teeth on the wheel 13 as they pass under it.

The means so far described are obviously suficient for rotating the wheel 13 manually or electrically so as to operate the drop 21.

In order, however, that this may be accomplished selectively the following agencies are preferably employed. The total apparatus about to be described is used for production of what may be called a 'free selective system, whereby is meant one wherein any possible combination of long and short movements or pauses within the limits of the instrument may be employed on a system of mutually connected instruments without any danger whatever of the wrong .instr'ument being operated, and I have found that, by properly combining the elements a device can be made which permits of selective operation of any one of a numher of wheels by the use of any desired combination. Where this means is used there is no necessity for comparing the combinations: among themselves and contriving to prevent mutual interference. Consequently the number of instruments, which can be operated successfully on a single circuit is comparatively very great.

In producing a selective system, as above on which the a1'n158 1S pivoted so as to maout-li'ned, it is necessary to supply dis-engaging mechanism whereby the retaining means is made to release the main wheel so that it will automatically return to its starting position, and to combine therewith a restoring device, or means whereby the effect of said disengaging devic is counteracted or interfered with at the proper time.

Referring now to Figs. 1, 2, 3, 6, '7, 8 and 10 it will be seen that my preferred device is provided with a series of pins 15 projecting from one face of the wheel 13 near the bases of certain of its teeth. These form the disengaging means, operation of which is best understood by inspection of Figs. 6, 7, Sand. 10. As there shown, the pawl 29 is provided with a side extension providing a bent raising finger 46 and a supporting lip 47. The latter forms a right angle bend within which hang two gravity hooks 1-8 and 49 pivoted near the top of the frame as at 50, and 51, and tending, by virtue of the balance weights 52, 53 to fall under the lip 47 when it is raised. The downwardly bent tip on the pawl finger 4L6 is so placed that as cachpin 45 passes under said finger, on movement of the wheel 13, the pawl is raised out of the path of the teeth on said wheel, in which position .it is caught by the shoulder on the book 48, which is somewhat lower than the shoulder on thehook 49.

Fig. 7 shows the pin 45 just as it is starting to raise the pawl, and Fig. 8 shows the position of the parts when the wheel 13 has moved one tooth forward and the pawl has been raised onto the hook 48. In this position the'pin 45 lies in line with the lip 47, but a little below it. This is the form of disengaging means which is operated by movement of the main wheel. The disen gaging means, operated independently of the main whecl,,"comprises the lifting arm oi the normal position of which is shown in Fig. 1 and yvhi'ch is pivoted at 5 Its upward movement is preferably limited by the curved stoparm 5.6 which comes up under the shaft 14 carrying the wheel 13. The extremity of the lever '54: isbent upward and its tip is turned into the horizontal to form. a lifting finger 57 so placed that, when the lever is raised, asshown in Fig. 6, said linger, raises the lip at up onto the shoulder of the hook 41-9. The lifting of the arm or lever 54 may be accomplished in any desired manner. but I prefer to accomplish it automatically by means the operation of which depends upon the time during whichthe main operating pen-=1 is held down in any case. This preferably tak s the form shown, wherein a bent gravity-lever 58, pivoted at 59 is adapted to descend against the arm (50, by depression of which the arm 54: is raised, as shown in Fig. 6. The retarding fan 61 and the train of gears are'connected in a well known manner to the shaft terially-rcta/rd downward movement of said arm. The arm 58 is preferably connected v disengaging action above described in cont1mo, -the very pi'osen'qe of ihe one and sometimes the other.

. in the path of upward movemem; of ting lift ing finger on the end of tho arm moiigioi to said train by frictionalengagemoot. or by equivalent means permitting rapid we turn movement; of said arm without ooiio sponciing' operation of the retarding: 12m. Other retarding means may be 125126. itiiout departing. from this invention. When the main operating level 242 is fully raised, as in Fig. l, 'the'arm' 58 is suppormi by ii hook 63 carried by said lever and holding said arm up against a stopa'i. A padding 65 is preferably used to prevent noisy-ria- I turn of'fhe arm 58 i It obvious from the above desoiripiioii that when the pawl 23 and lei ei 2 L siesoemi and reascend without pause, the slowly mow in'g arm 5.8 Will be caught by the hook-63 on its return. movement before ii; hostimo to touch the' arm 60 engaging mechanism. On tho other Emmi, this disengaging mchanism will iso operated; if a sufficient pause is made while the lever 24. and. pawl 23 are held. (lawn. Thiio tho pouse' na'de While the paw 23k; lowered has the eiiectof disengaging t. e retaining paw}.

The pins 45 are so placed that each, when in the position shown in Fig. 81, and jizot' after it has disengaged the pawl 29, stands he and 01" said arm is so shaped; hOWfiVQE? {see Fig; 6) that, in rising for @1101 oo siriko' under a pin @5, iipon a iong impuiso it omits like. a cam upon the tripping extensioo-GG at the bottom extremity of the hook: if), forcing said hook to the. iezfi: in Figs 1, 6, 7 and 8, 21nd so permitting 'tiiopa'wi to drop back upon the Wheel 13. If, on the oiher. hand, the arm 54' is raised when no pin occupies a position as shown in Fig. 8, there will be nothing to impede said arm and the nection withFig. 6 will take place. Theses and and higher hook 49 is 'necessai'iiy utilized in thig case, because the caniziciioi of the arm 54 pr evnts operation oi the book 48. It will thusbe see-1i that; ovary time s pin 45 passes the bent tip of the pawifinger 4 .6, disengagement of the pawi takes place and, in order to continue Uninterid for ward movement of tho Wheel 1,3,ihe arm 5% must be aisedioaot as a restore by its cam effect on the hook 4-8, before the main ririving. pawlx23 is raised. This isautomaiioziiiy aocomplisbod inflxe form shown if lii'rlklilg'i pause While 23 is downcso asto let the retardeci b n; 58 come into play. At the oamea 39in 45 pro vents tho 'bal 58 from performing its own. disengaging fo imion, by v l aising tho member 47 onto hook 4:9, as in b, Thus 'qfihe -pi11 45 is at onofadisengoging a storm means :ir d' tho bar EEViSlSGRKQiiT-IIQS 1 A l the two iisengag ng elomenij U oach-oti ers funotions'os dise'ii other, as interfering means, kmi'zmci reiotion 5 82 pausa long enough to tixc-: Emir. 58. m releasing freed 52 0221 both hooks {58, 49 when the Whei action oi? the pin upon the'lip of the and pawl 52% takes pizzooreiess manipoiation.

:iiid haw moizual o ation one upon :th

the pa 'zicular of their. activity at any given ECiJJLMZiOH of the ERwhiL'lS being dependent upon. wheihor izhe proper sore of impulse is made at the propar time, an if not so mmio,1 What sort of an iinpuise i6 is that made out 011 its code relation, and :Wilai; the roiaizive positions of ihe disengag A oumingza Wheel 13 so be sopg'iieci" with o series of? 3, fu'iij operaizion of such-o road by a; succession of dowm wzmi moitomemims-oii the main im vifig which follow. each othei without; any paus'e except i ofiersuch-movoments as hriiig'a pin 45 into and operate the 6113- f:

Jim posiisionsziiowmii; Fig. 8. Each of the Ease: Klfilfififi mov'e zieioiifis must be followed by permit operation of the pawl from tb'fe hook If fiiis is, omitted the iifiifigfif tho moindriviiig pawl 23 frees the wheel 13 i onizireiy :mii file spring 15 throwo the vi'hee1-- to starting v if such a fox when point; Uri iho 3S morize at the Wrong icziize, no pm &5 is m the intorfaiiingpo reaums' to lamina by impact of bile trip flipping ex'izeosions oi ihe 2W1) hooks, its active posiion'.

From Hie foregoing it Wiii' be evident om leaving the pawl 29 in whore long lmpmso is given under condi tions Where /ho pin 45 is in poaition, to ob retaining. paw} 29 will be lifted onto i ooii 49, and the Wheel will rotorn Whom ashort no pm ingiiace, oi'iviolisiy bhewheei will be iieiri. Wiiere 55, long impulse is given, with iiisohgogos the pawl a pin 1n pi from book 4-8; onto which it has been moved by the pin, and the wheel will be held. Where short impulse is'given, with a, pin in place, the pawl 29-is discng ci, hr the goo, arm 5 ornvi m d the Wheel Petun a.

i prefer to pmmdea safety hook (S9 tie other hamo' pins 1 25' subsia-ntiaiiy as ho'wn v z m Flgs. {2234i 1 wheelis pmii z sition reioase oi tiie wheel takes phi 1D. 5 Fig: 6. Iii eiiahoir cose. 'i'he retaining YJWW}. is

shaft of the .wheaei 13 i' Y 7); This bill strikes the V 66 and G8 at; the boatoms :5

impulse-is given, with pending from the main .opamting lever and so piacezi asio engage undo:

dead beat action of the Wheel 13 an im .the rear edge "o1- ihe sicie extension on thepawi 29'whe11 sure its occupying the proper position at the end of each stroke I prefer to use a wedging stop or pillar 70, between which and the wheel 13 the pawl 23 forces itself at the end efcach downward movement. The wheel 13 may be driven one or more teeth at a time, as long as the extent of movement isuniform. By adoptin this system, all

, the wheeis sent out for different instruments can be made exactly alike, with perforations at regular intervals for receiving pins 45. It is then only necessary to make sure that each individual instrument is suppliedwith pins arranged in said holes in a manner dif ferent from all other wheels in a given system. By keeping a record of the pin arrangement on each wheel, any desired instrument can be operated exclusively.

. For calling telegraph operators, -or wherever else a bell is to be rung the drop 21 is preferably operated as follows: A contact spring 71 is fixed behind the drop on the insulating slab 72, and plays between two contact pieces 73 and 7 which are in electric connection respectively with the springs 75 and 7 6. As shown diagrammatically in Fig.

' 9, contact of spring 71 with 74 closes circuit through the battery 77, the terminals l and 2 and the bell 78. This contact is produced by fall of the drop 21 the lower edge of which forces the spring 71 backward (see Fig. lVhen the drop is up, this spring makes contact with 73 and carries current from termi nal 4 to terminal 3, where connection is made with the magnet 6 for working the main lever 24. In the diagram shown (which is the arrangement preferred for telegraph stations) the magnet 6 is operated by the backward movement of a relay 79 and in multiple arc with the circuit of the sounder 80, which latter circuit is also broken at 71, 73, when the hell rings. As telegraphic systems usually operate on normally closed cir-v cuit, no current passes through the magnet 6 when the line is not in use; and energy is saved.

Many of the features heretbfore described may be modified and variously combined without departing from this invention.

It is immaterial to the in nntion whether.

the magnet 6 acts to raise or to lower the main driving lever, and indeed the actual form described may be worked by hand or otherwise where necessary with a lock, mine or other device not to be operated in connection with oth r instruments.

'ihc retaining means, disengaging devices and restoring devices may all take agreat variety of forms, singly hr together without departing from this invention, and magnetism may be, relied upon instead of mechanical means exclusively. The movement ofthc main machine element (whether awheel or other device) may be used to close a cirpmt directly, adjust the tumbler of a lock or produce any other desired result instead of making a drop fall. Many other changes and modifications may bemade without departing from the scope of this invention which is not to be limited except as it is limited by the claims.

What I claim is- 1. In combination with a movable machine element, a main impelling device adapted to move said element step by step in one direction, a retaining device adapted to automatically hold said element, disengaging mechanism for said retaining device automatically actuated by movement of said elechine element, a main impelling device adapted to move said element step by step in one direction, a retaining dee'ice adapted to automatically. hold said machine element,

disengaging mechanism for said retaining device automatically actuated when said element is moved, a restoring devicefor counteracting the effect of said disengaging mechanism and automatic retarded impelling means for said restoring means actuated upon forward movement of the main impelling means, substantially as described.

, 4:. In combination with a machine element adapted to he stepped, means for stepping it uniformly by each one of a series of impulses, a retaining device adapted to automatically hold said element, disengaging mechanism for said retaining device independent of said machine element, and an interfering device operated by said machine element for counteracting the effect of said disengaging mechanism.

5. In combination with a machine element, a main impelling device adapted to move said element step by step in one direction, returning means tenuing to move said element in the opposite direction, a retaining deviceadapted to automatically engage with.

said element to counteract the tendency of said returning means, disengaging mechanism for said retaining device automatically actuated by movement of said element, and a restoring device for counteracting'the effect of said disengaging stantially as described? I mechanism, sub- Q substantially as? ts d scribed asting-619$- 6. In combina tion with a mchinet lamflfig a mam impellmg demcra aapiedm mam said elememl step-by step in 0119 aiirecakm returning m'eainstnding w 130% said @163 mam in the op'gibs'itdimcfim -a-remin i and rsaturnmg maam i ng deyice adapted to aiztomatimfly engaga with said element countemefiflrge tendmcy of said returnmg mQans-,;dis'efigag1ng meehw msm for said retaimng dcvice ummktiwiiy amfiuated' by" movmena "aiememb, a restomng dew 10s for countemctmg the. m feet of tomat ic rgmrdeci impefling means f 1: midrestosing device held by gai' imla'ell i ng; d emmand udapfimi tabefr'eed bwepsmmw fxrviard 1110mm i l iing mteans v ci'gse ibedp 7. In' mbinamonTmi-h a maehme'el mam",

iEf OmfdirecL-ion, ccynstantljy acting return 17mg means tending to mgve Said giemexliz m :2; "retaining d vics adapted 1.20 autonmtiaiiy engage with sairi' elmnent cqunmz giiy fife tendency of said returning me amgdis'engaging meshani g ib; sa id retaining ievic jniwmaimfiy1h1ates? bymovemenjtfb aid eiment,' 213161 a x-est0ring devicgxfnr cmzntez ating-"ths sfiect of said. diam mecii'anism; substantially 8. In 'cqmbin atibh" a pivote testbed said s'ectgm in} le gpiasite dirctinma retaining pawljndaptecl ip' antamatlcaily en;

gage with the teetlp'oms'aid se'ctnr, disem gaging meci l'mfism'fob'said retaining pawl automaticily. alatuai edby moveme'nri 0f said v v J m sector and a" restimingpdevie 01- mun-Juract ozsaii (usngagmg mechm hism. snbstantia-liyas, desqxgibefi.

9,111 ebmbimtim Wit? a pispteflgtoothed sectog'w-mmmxi unpelhpg pmqmounted on api -vbtsdiiilever mld g ficiapted tmmove said .fector step by step, returning means tendwit w m y saansialiy damribad; 7

11. En cammmzjmn waah & method wheat,

. m aifi impalling psm'i laciapted to move wmei mkep by 3&6}? gm one 'dll'GCflOH. mailing tamove sald wheiei' ixl t'ehie qppasite digestion, a retaim mg pawlei lgzzgmg-mth sand wheel, a enes igs-carried bys'aiei time! for liftingi pawl, supgmm fer heiding said paw away fwm wid-wheei and means for dis ,ggin, $95M paw). agzlidi supporgsubmm, 9, main immiiing device adaptsd .t0

mweimid mmhime'efiga ngemt.ism by step in mmng (ieyme adapted tn autmiatmaiiy hold sand macmne element,

'dismgia-ging mechanism fer said retaining devica operateci by .mavement of said e1e mani a, asuppfirfi, ins;- holfimg and retaining dewa m'lfi-"flf 'eagagement w th said element and means actuafied: by return of said elemam; m its .nmma starting pasition for dlscomleg'bmgsaid suppm t fmm and IE1 taming 11mm; subsmnaml-iy as diescnbed.

- In mmaluim55km Wit-h amachin elemelii; mfiilf ism ate in it 'uniforml b s r: y

each one of gexies m? impulses, autbmatic retaining means thrarefamdi'sengaging me chamsm ind'xepandent (25 my} masiune element am? arrangedtn mew-z mependently ofsmd impeiling means for waving said retaining device, me an interferingj device opemted by movement of sand machine element for preventing action of said disengaging element;

14;. In cmnbimztion with a machine e]e 'ment means for $3593 m 1%, umforml 1 b each (me of a series of mpulses re'mining means, disengaging meansindependent of said machine eiemeint and; arranged to move independenifiy of said impellitig means for rez'novmg sand :eimglpg means, and 2: blockievlce moved by 52nd machme el'ement into anfi Qu z of the pash 0i movement of said disengagingmezms. I w

i5. Tm cnm'igimwion of a machine elemsnt, 1.1mm f5? smpping: ii", uniformly by' each one of a series of impulses, a retaining.

means for sa id machine 6162119112 a lifting bar adap ad$ mm 'e said retair'iing. means 1 I irons. smd ma anme element and a blockmg device'uperzzd by movement of said maehme element to move Into and outof the pni'h 0f mevement oisaid fiftin'g bar. 1%. The mmbmatmn w th a, machme e1e-' ment, means far sitgp pingit uniformlyby each 1 ,9, ofa sari'esox impulses, a, retaining y'mwi fwm said mashin eiemant; and a n wblacmng pm on" smd machme checkuig the mwemem; of

In, .cem'fn inmion with 7 gain 1111326111215" means them v but" adapted 60' move said? pawl therefor, a support for said pawl when not in operative position, a lifting bar for moving said pawl into engagement with said support, and a blocking pin on said wheel for checking movement of said lifting bar, substantially as described.

'18. In combination with a main wheel, main impelling means therefor, a retaining pawl therefor, a support for said. pawl when not in operative position, a .lifting bar for moving said pawl into engagement with said support, and a releasing device operated by return movement of said wheel for disengaging said pawl from said support, substantially as described.

10.111 combination with a'main wheel, main impelling means therefor, a. retaining pawl therefor, a support for said pawl when not in operative position, constantly acting leans for producing return movement of said wheel, a lifting bar for moving said pawl into engagement with said support, and a releasing device operated by return movement of said wheel for disengaging. said pawl from said support, substantially as described.

20. In combination with a main wheel, main impelling means therefor, a retaining pawl therefor, a support for said pawl when not in operative position, a lifting bar for moving said pawl into engagement with said sup; "t, a blocking pin on said wheel for chet ig movement of said lifting bar and a releasing device operated by return movement of said wheel for disengaging said pawl from said support, substantially as described.

21. In combination with a main wheel, main impelling means therefor, a retaining pawl therefor, a pivoted hook for supporting said )awl constantl actino' means for producing return movement of said wheel, a lifting bar for moving said pawl on to said hook, a blocking pin on said wheel for checking movement of said lifting bar, and a' releasing device operated by return movement of said wheel for withdrawing said hook from said pawl, substantially as described. v

22. In combination with a machine element, main impellinq means therefor, a retainingdevice there 'or, disengaging mechanism independent. of said machine element for removing said retaining device, an interforing device operated by movement of said machine element for preventing action of said disengaging mechanism, an automatic retarded impelling means for said disengaging'mechanism, and said main impelling means being adapted to effect operation of said retarded impelling means.

In combination with a main wheel, main impelling means therefor, ,a retaining pawl therefor, a lifting bar adapted to re move said pawl from said wheel, a blocking device operated by movement of said wheel to move into-and out of the path of movement of said lifting bar, automatic retarded impelling means for said lifting bar, and said main impelling means, being adapted to effect operation of said retarded impelling means.

24. In combination with-a main wheel,,

main impelling means therefor, a retaining pawl therefor, a lifting bar adapted to remove said pawl from said Wheel, a pin on said main wheel to check movement of said lifting bar, and an automatic retarded impelling means for said lifting bar, said main impelling means being adapted to effect the operation of said retarded means, substantially as described.

25. In combination with a main Wheel, mainimpelling means-therefor a retaining pawl therefor, a lifting bar adapted tore move said pawl from said wheel, a hook for supporting said pawl when removed, a pin on said wheel for checking movement of said lifting bar, automatic retarded impelling, means for said lifting bar, and a releasing device operated by return movement of'said wheel for disengaging said hook'from'said pawl,-substantially as described.

26. A machine element, a retaining device therefor, a disengaging mechanism f said retainingdevice operated by movement of said machine element, a second disengaging mechanism independent of said machine element, and separate means for restoring said retaining means to normal, substantially as described.

27. A machine element, a retaining device therefor,a disengaging mechanism for said retaining device independent of said machine element, and a second disengaging me'bhanism operated by movement of said machine element, and adapted in a certain positionto block operative movement of said first named disengaging mechanism, substantially as described, x

28. A machine element, a retaining device therefor, a disengaging mechanism for said retaining device operated by movement of saidmachine element, and a second disengaging mechanism independent of said machine element and adapted to counteract the effect of said first named disengaging mechanism, substantially as described.

29. A main wheel,- a retaining pawl therefor, a pin. projecting from one face of'said wheel so as to lift said pawl when brought in proper position, a hook for holding said pawl when lifted and a pivoted .cam lever adapted to remove said hook from said pawl, substantially as described.

30. A main wheel, a retaining pawl there- When-in one position to blocktiieioporation V to s position, sub'smnisioi'iy iris diefor, s pivotooi lifting bar adapto to romovo & said uppoosuppers while removing said .tWo disengaging mochonismsfor said. pow

oratoiy and each: aflaptoii io receive said Sill {191113111 wo for, 9, pivoixoo"! lifting imr adopted to-romovo saici oowi from said whoeho hook for hoidiiig said paw when. lifted and a pin pro jecting; from said-Wheel and oiiopboii Whom in one position .to block the operation oi? soioi li'figmg bsnsubstontiaily as dosoi'ibed.

Y 31. A main-wheei ,o 'irotsinirog awi theresaid pow 'fooin said whee}, av hook for hoid mg saidipowl 'whnliftsd, oopin grojooting from one fogs ofsoiiwhei, on adopted oi sm 1 ongLar, am a is oosing mm: on 1e shaft said Wilfii adopted to sopamis sol-:1 nook one! powiwhen'fihe wheel is rammed scriboiil. 1 I

32. A. iiiaii wileol, a retaining pawl there for, anupper ondJo lower support {for re? ceivin saici iiawlwhon removeci from said wheel, a iifting ban: anciszmi lever combined adopi ed whonopo atod to raise saiii. paw

lower support-,fondo pin projecting from one face ofsaiiiiwhol so as to-blook said lifting bill in oii'e position and to lift said pawl onv to the lower support just before i'oiiciiinp; said position, Substantially as do scribed A main wheel, a retaining; paw imii each of which s'ctsiu-"ono position to coontoo dot the oii'eotof the other, snbstoniiaiiy 21s flescribod, f V

A main Wheel, a retaining pawl, a disengaging mechanism for said pawl operator? bysaid main wheel and a socond-disongaging mechanism independent of gm Wheel, substantially as described.

A main WiieeL-a'retaining paw thorofm, on upper and a lower pivotod pawhsupporting hook, a lover carrying a lifting bar :idopi'mi to raise said pawl to said upper hook, a sum for flipping soidiowor hook, and pin on said wheel for raising said pawl to said i-ower hook am} for bio sniri lifting 13:11 in one position of said snb'stantiaiiy as described. I

36. A main whet-s1, oi'etoiiii ig.pawl Hierofoi', on up p01- and. a lower hook pivoted seppawl, disengaging i echnvnism for placing said pawl on SEKd iOWGI hooigond separate disengaging mechzinisni for piooi ng oidn 3?. A main wheel, a retaining pow theio' for, an opium: ondl'sz iower hook pivoted sop,- omtely and with odaypigfid to receive said pawl, d isgilgixfsing moohsnism operated by H M1 for placing said pawl on Siiiai lower hook, and a sooonr'i cii'seiigaging .ischonism independent of said main Wheel s iiitiog bar in position such as to iqiace said pow on said upper-hook and a pin on said 2min Whosi in position such as to place said pow! on. said iowei hook and acting inone Pfifliilifill to iolociii-tho movement of said lift- 3 mg boar, substantially as described. J A main WilGGLfi 'izotziining pawl thereifor, an up or and a lower; hook pivoted seps iotoly om. oooh adopted to receive said; pawl, -a pine main Wheel imposition such as 3 to pioco said pawl on said lower hook, a. pivoted; iii'ting box for placing said pawl on said uppor hook, and i eieasing mechanism operated by return movement of said Wheel A V trip both of said hooks, substantially as 1 -iosoribe i w w 4-1. A main whool, a moiiiimpolling-iovol midi pawl otmohodihereto for 'd iifiing said impo'iling lover for catching said pawl wliori- I No rain WhooLjmibstsnt mHyasd tiiero'foiradaptei i0 propei-soid wheel by a soifies of uniform stops, outomat "moails for A, returning Wheel -You iis nOfmS-l starting positiom a retaining pow a iiisengaging means for said pawl retarded Wit to movement of said impsiiing'maiisandpins on said heel odsiptod to mm oiiiftoandout ofinhe path ofsaid oisengogiog moons, substoniiiaiiy is desoriiziod.

Inlo selective mechanical opomtorin 11o combination, a main wheel, impelliiag" means; therefor. ofisptofl. to propel soidiwhol by a f uniform steps, autonmtiomeans for said Wheel iio its normal siartiu I position a roiziining pa -oi, a swinging i ooiiils foits iiai pow o, i oiardsdfciisengagi means oiiopood 'to make contact with said o'okt' v swing the somoand' piosgonsaidf-whel- I adoptedtomovo iiito on out i -he -;po l 1y-. or soici disengaging means, substantially-ma "1 described. 7 i i v.

44-. In as selective mechanics; coinbins-iiou, 2% main wheel, therefor aoia pted to propeif series of iiiiiform steps, aoiom retaining saiciwhoei toits n so posiiziom 2i retaining pawl, gfiwo hooks for said pawl oi; d fferent iev ro iofiiod disengaging means adapted 159 for placing; said poo-ion said upper hook, substsnt-iaiiy as described. I V,

saiii' pawl and swing on'of said hooks ind yahoo "i 'stoiniiig pm L'ciisongoging a g- H my 5 pow and av safety hook on sa ujgg respocjt 1 05 pins on said wheel adapted to move into and out of the path of said disengaging means, substantially as described.

4.5. In a selective mechanical operator, in combination a main toothed wheel, a retaining pawl therefor, and a series of pins projecting from one face of said wheel for raising said pawl, substantially as described.

46. In combination with the other mechancal elements of a selective mechanical operator, a main toothed wheel, provided with a series of pins projecting from the same and a retaining pawl for said wheel bent at its end to form a sloping li in the path of movement of said pins su stantially as described.

17. In combination with the other mechanical elements of a selective mechanical operator, a main toothed wheel provided with a series of pins projecting from the same, a swinging hook and a retaining pawl bent at its end to form a sloping lip in the path of said pins and having a lateral projection adapted to rest on said hook when said pawl is raised, substantially as described.

48. In combination with the other mechanical elements of a selective mechanical operator, a main toothed wheel provided with a series of pins projecting from the same, a swinging hook and a retaining pawl having a lateral projection a portion of which projects into the path of movement of. said pins and another portion of which embraces said hook and isadapted to rest on the same when the pawl is raised, substantially as described. I

49. In a selective mechanical operator, a

. main toothed wheel, a retaining pawl hav- 5 ing an engaging lip,and two p votally car- 40 ried supports of different heights adapted to engage said lip, substantially as described.

50. In a selective mechanical operator, a main toothed wheel carrying a pin, a retain ing pawl having an engaging lip, and a downward projection adapted to be struck by said pin, and a pivoted hook adapted to engage with said lip when said pawl is lifted, substantially as described.

51. In a selective mechanical operator, a main wheel, retaining nieans therefor, dis engaging mechanism for said retaining means, a pivoted lever adaptedto operate said disengaging mechanism and a train of wheels and retarding fan attached to said lever, substantially as described.

52. In combination with a machine ele- .ment, means for driving; said element in one direction uniform distance "for each impuiseou the main line, means for retaining) said element against retrogression an automatic disengaging device for said latter; means arranged to move independently of said ,driving means, and mechanism for preventing operation of said disengaging device.

53. In a device of the class described, a toothed wheel, a retaining pawl therefor, a holding device. for said pawl, a retarded means for disengaging said holding device from the pawl, impelling means for said wheel and means connected to said impelling means for restraining said retarded means when said impelling means are inactive, substantially as described.

54. In an apparatus of the class described, in'combination, a machine element, means codally arranged series of impulses of different characteristics, means for causing the return of the machine elementto normal by an impulse of one characteristic out of its codal relation, and means for causing the return of the machine element to normal by an impulse of different characteristic out of its codal relation.

55. In apparatus of the kind described, in combination, a machine element, means for stepping it uniformly by each one of a codally arranged series of impulses of diiierent characteristics, retaining means, means adapted to affect the retaining means and cause the return of said member by an impulse ofone characteristic out of its codal relation, and other means adapted to aii'cct the retaining means and cause the return of said member by an impulse of another characteristic out of its codal relation.

56. In apparatus of the kind described, in combination, a machine element, means "for stepping it by each one of a codally arranged series of impulses of different characteristics, means for efiecting the return of said member to normal by an impulse of given characteristic out of its codal relation, and other means for effecting the return of the member to normal upon an impulse of a given different characteristic out of its codal relationfo ne of said means'adapted to negative the efi'ect of the other when the impulse is of a certain characteristic.

57. In apparatus of the kind described, in combination, a machine element, means-for stepping it by each one of a codally arranged series of impulses of different characteristics, means for causing the return of said member to normal upon an impulse of given characteristic out of its codal relation, and other means for causing the return of the member to normal upon an impulse of a given different characteristic out of its codal relation, oneof said means adapted to negative the effect of the other when they occupy certain positions.

58. In apparatus of the kind described, in combination, a machine element, means for Stepping itby each one of a codally arranged" series of impulses of different characteristics, means for effecting the return of said member to normal upon an impulse of given characteristic out of its codal relafor stepping it uniformly by each one of a V Kid monies tion, and other means for etlecting the return of the member to normal upon an inipulse of a given d'iii'crcnt characteristic out of its codal relation one of said means adapted to negative the effect of the other when they occupy certain positions and :When the impulse is of a certain characteristic.

59. In apparatus of the kind described, in combination, a .machine element, means adapte i to step the same forward uniformly by a bdally arranged series of impulses of different characteristics, a retaining means, means for disengaging said rctainingmeans upon an impulse of given characteristic out of its proper-codal relation, and othermcans for disengaging said. retaining means upon an impulse of cliiicrent characteristic out of its codal relation.

60. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward by codally ranged series of impulses oi different characteristics, retaining means, means for dis engaging said retaining means upon an impulse of given characteristic out oi its cod-a1 relation, and other means tor disengaging said retaining means upon an impulse oi dificrent characteristic out of its coclal re lation, one of said last named in ans adapted to negative the effect of the other when the impulse is of a given characteristic.

61. In apparatus of the hind de cribed, in Combination, a machine elementymcans for stepping it forward by each one a ccclslly arranged series of impulses oft different characteristics, retaining means, means for disengaging said retaining means upon an impulse oi any characteristic, and means adapted to negative the silent of: said. last named means when said impulse is oi a given characteristic.

62. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward by each one of a codally arranged series oi impulses of (hi-- fcrcnt characteristics, retaining means, means for disengaging said retaining means upon an impulse 03": any characteristic, and means controlled by a long impulse adapted to negative the effect of said last-named means.

63. In apparatus of the hind described, in combination, a machine clement, means for moving the same forward by each one of a codally arranged series of impulses of ditfer'entcharacteristics, retaining means, means including a lever for disengaging, said retaining means upon a long impulse, and means controlled by an impulse adapted to negative the effect of said last named means when said impulse is made in its codal relation.

64s in apparatus of the hind described, in combination, a mach ne element, means for stepping the same forward uniformly by each one of a c odally arranged series of impulscsof diiierent characteristics, retaining meana'and a plurality of means for disengaging said retaining means, one of said means being operable upon an impulse of one characteristic, and another upon an impulse of another characteristic 65. In apparatus of he kind described,in combination, a machine clement, means for stepping the same forward uniformly by each one of aseries of codally arranged im. pulses of different characteristics, retaining means, and a plurality of means for disengaging said retaining means, one of said means being operableupon an impulse of any characteristic and the other upon an impulse of a certain characteristic,

66. In an apparatus of the kind described, in combination, a machine element, means for stepping said element forward uniformly by'a codally arranged series of impulses of ditierent characteristics, retaining means for said machine element, a plurality of members movable for disengaging said retaining means, said members having mutual interfering action upon each other, the slicetive operation of either of said members being dependent uprin-thc position oi the machine clemcnt and upon the character of the next preceding impulse.

6?. in apparatus of the kind described, in combination, a machine element, impulse means for stepping the some, a retaining member, means upon the machine element for moving said retaining member from ongsgement with the stepped member, means adapted to negative the effect of said element and to cause engagement of the retaining member with the stepped membcrwhen the said means upon the machine clement occupies a. given position and upon an impulse of given characteristic. Y

68. in apparatus of the hind described, in combination, a machine clement adapted to he stepped, impulse means for stepping; the same, a retaining member, meansupon the machine element for moving the retaining member from engagement with the stepped member, and means adapted to negative the chest of said element and to cause engagement of the retaining member with the stepped .membcr when the said means upon the machine element occupies a. given position and upon an impulse of given characteristic.

69. In apparatus of the kind described, in combination, a machine element adapted to he stopped, impulse means for stepping the same, a retaining member, means upon the machine element for moving said retainin member from engagement with the steppe member, a retarded means adapted to ne'gative the effect of said means on the machine element and to cause engagement of the retaining member With the machine element when the said means upon the machine element occupies a given position and upon an impulse of given characteristic.

7 O. In apparatus of the kind described, in combination, a machine element, means for stepping the same, a retaining member, means for moving said retaining member from engagement with the stepped member, and means adapted to negative the effect of said last named means and to cause engagement of the retaining member with the stepped member when the said disengaging means occupies a given position and upon an impulse of given characteristic.

7-1, In apparatus of the kind described, in combination, a member adapted to be stepped from a normal initial position, impulse means for stepping said member, means for retaining said member against retrograde movement comprising a relatively movable holding member engaging said stepped member, means upon the stepped member adapted to move the holding member from engagement with the stepped member, means for holding said retaining member momentarily in a position of disengagement from the stepped member, and retarded means adapted to cooperate with the second mentioned holding means to frec'the retaining 'member, whereby it may rengage the stepped member and hold it, the operation or the retarded member upon the second mentioned holding member being determined by the characteristic of the impulse.

72. In an apparatus of the class described, in combination, a'machine clement, means for stepping it uniformly by each one of a codally arranged series of impulses of different characteristics, means for effecting the return of the machine element to normal upon an impulse of one characteristic out of its codal relation, and means effecting the re turn of the machine element to normal upon an impulse of different characteristic out of its codal relation, one of said means being controlled by the machine element.

73. In appautus of the kind described, in combination, a machine element, means for stepping it by each one of a codally ar ranged series of impulses of difi'erent characlcristi s, retaining means, means adapted to aficct the retaining means and permit the return of said clement upon an impulse of one characteristic out of its codal relation, and other means adapted to affect the retaining means and permit the returnof said element upon an impulse of anothercharactcristic' out of its codal; relation, one of said means bcing'controlled by the machine element.

'74. In apparatus oi the kind described, in combination. a machine element, means for stepping it by each one of a codally arranged series of iin ulses of different characteristics, means eflecting the return of said member to normal upon an impulse of given characteristic out of its codal relation, and other means effecting the return of the memher to normal upon an impulse of given characteristic out of its codal relation, one of said means adapted to negative the effect of the other when the impulse is of a predetermined characteristic, one of said means being controlled by the machine element.

7 5. In apparatus of the kind described, in combination, a machine element, means for stepping it by each one of a codally arranged series of impulses of different characteristics, means for eflecting the return of said element to normal upon an impulse of given charactelistic out of its codal relation, and. other means for effecting the re turn of the element to normal upon an impulse of given characteristic out of its codal relation, one of said means adapted to negative the effect of the other when they occupy certain positions, one of said means being controlled by the machine element.

:6. In apparatus of the kind described, in combination, a machine element, means for stepping it by each one of a co'dally-arranged series of impulses of different characteristics, means'for eflecting the return of said element to normal upon an impulse of given characteristic out of its codal relation, and other means permitting the return of the element to normal upon an impulse of given characteristic out of its codal relation, one of said means adapted to negative the effect of the other when they occupy predetermined positions and when the impulse is of a certain characteristic, one of said means being controlled by the machine element.

77. In apparatus of the kind described, in combii'iation, a machine element, means adapted to step the same forwad uniformly by a codally arranged series 0 impulses of different characteristics, a-retaining means,

means for disengaging said retaining means upon an impulse of given characteristic out of its proper codal relation, and other means for disengaging said retaining means upon an impulse of different characteristic out of its codal relation, one of said means being controlled by the machine element.

78. In apparatus of the kind described, i combination, a machine element, means for topping the same forward by a codally arranged series of impulses of different characteristics, retaining means, means for rliecnc'aging said retaining means upon an impulse of given characteristic out of its codal relation. and other means for disengaging said retaining means upon an impulse of diflcrent characteristic out of its codal relation, one of said last named. means adapted to negative the effect of the other nice- 1cc,

when the impulse is of a given character istic, One of said means being controlled by the machine element.

79. In apparatus of the hind described, in combination, machine element, means for stepping it forward by each one of a codaily arranged series of impulses of diilerent characteristics, retaining means, means for disengaging said retaining means upon an impulse f: any characteristic out of its nodal relation, and means adapted to negative the elfect of said last named means when said impulse is of a given characteristic, one oi said means being controlled by the machine element.

80. In apparatus of the kind described, in combination, 'a machine element, means foristepping the some forward by each one of a codally arranged series of impulses of different characteristics, retaining means, n'ieans for disengaging said retaining means upon'nn impulse of any characteristic, and means adapted to negative the effect of said last named means when said impulse is long, one of said means being controlled by the machine element.

81. In apparatus of the kind described, in combination, a machine clement, means for moving the some forward by each one of a codally arranged series of impulses oi diiicrent characteristics, retaining means, means for disengaging said rctaiiiing nieans upon a long impulse, and means adapted to nectative the efiect of said named menus When said impulse is made in its co'dal re lation, one of said means being controlled by the machine element.

82. In apparatus of the kind described, in combination, a machine element. means for stepping the some forward uniformly by each one of a eodally arranged series of different characteristics, retaining means, and a plurality of means for disengaging said retaining means, one of said means being operable upon an impulse of one characteris' tie, and another upon an impulse of another characteristic, one of said means being controlled by the machine element.

83. In apparatus of the hind descril'ied, in combination, a machine element, means for stepping the saline forward uniformly by each oneoi? a series of cod-ally arranged iinpulses of ditlerent characteristics, retaining means, and a plurality of means tor dis: engaging said retaining means, one of said means being operable upon an impulse of any characteristic and the other. upon an in pulse of a certain characteristic, one oi said means being controlled by the machine eleincnt. N

8%. In apparatus of the kind described, in combination, a machine element, means for stepping the same forwardbv a codally arranged series of impulses of dilierent characteristics, retaining means, a plurality of zen movable means for disengaging said retainingin ans, said last named means adapted to have a mutual interfering action upon each other, the effective operation of either oi said means being dependent upon the position oi the machine element and upon the character of the next preceding impulse, one of said means being controlled by the machine element.

In apparatus of the class described, in combination, a machine element, means for stepping it uniformly by each one of a codally arranged series of impulses of different characteristics, means for efiecting the re turn of the machine element to normal upon an impulse of one characteristic out of its codal relation, and means effecting the return of the machine element to normal upon an impulse of different characteristic out of its codal relation, one of said means being" controlled by the stepping means.

86. In apparatus of the kind described, in combination, a machine element, means for steppiio it u iiormly by each one of a codally fll'I'l .SQliQS of impulses of different characteristics; retaining" means, means adapted to client the retaining means and cause the return of said element upon on impulse of one characteristic out of its codal relation, and other means adapted to affect the retaiui means and cause the return of said eleu t upon an impulse of another characteristic out of its codal relation. one or": said menus being controlled by the stepping mean-s.

8?. In apparatus of the kind described in combination, a machine element, means for stepping it by each one of a codallv arranged series of impulses of diiierent characteristics, means effecting the return of said element to normal. upon an impulse of given characteristic out of its codal relation. and other means eilecting the return of the element to normal upon an impulse of a given dilierent characteristic out of its codal relation, one of said means adapted to negative the eiiect of the other When .iLDillS is of a certaincharacteristic, one of said liQitHS being controlled by the stepping means.

88. In apparatus of the kind descr bed. in combination, a machine element. means for stepping it by each one of u codally arranged series of impulses of different characteristics, means effecting the return of said element to nornal upon an impulse of given characteristic out of its codnl relation. and

combination, a machine element, means for given ehamcicristie out of its codal relatinn, and other means er'lecting' the return ot the element to normal upon an impulse of a ghen diliercnt characteristic out of its codal relation, one of said means adapted to negative the ell'ect of the other when they occupy certain positions and when the impulse is of a certain characteristic, one ct said means being controlled by the stepping means.

90. In apparatus of the kind described, in combination, a machine element, means adapted to step the same forward uniformly by a codally arranged seriesof impulses of dillcrenl characteristics. retaining means, means for disengaging aid retaining means upon an impulse of given characteristic out of its proper codal relation. and other means for disengaging said retaining means upon an impulse of different characteristic out of its codal relation, one of said means being controlled by the stepping means.

91. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward by a codally arranged series of impulses of different characteristics, retaining means, means for disengaging said retaining means upon an impulse of'giren characteristic out of its coilal relation, and other means or disei'igaging' said retaining means upon an impulse of ditiercnt, clniractcristic out of its codal relation, one of said last named means adapted to negative the effect of the other when the impulse is of a given characteristic, one of s id means being cont rolled by the stepping means.

92. In apparatus of the kind described, in combination, a machine e ement, means for stepping it forward by each one of a codally arranged series of impulses ot diii'erent characteristics, retaining means, means for disengaging said retaining means upon an imulse of any characteristic, and means adapted to negative the effect of said last named means when said impulse is of a given characteristic, one of said means being-controlled by the stepping means.

93. In appa atlas of the kind described, in combination, a machine element, means for stepping the same forward by each one of a codally arranged series of impulses of different characteristics, rel aining means, means for disengaging said retaining means upon an impulse of any characteristic, and means adapted to negative the effect of said last named means when said impulse is long,

one of said means being controlled by the stepping means.

94:. In apparatus of the kind'described, in

combination, a machine element, means for moving the same forward by each one of a codally arranged series of impulses of d"fterent characteristics, retaining means, means for disengaging said retaining means upon a long impulse, and means adapted to negative the effect of said last named means when said impulse is made in its codal relation, one of said means being controlled by the stepping means.

95. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward uniformly by each one of a codally arranged series of impulses of different characteristics, retaining means, and a plurality of means'for disengaging said retaining means, one of said means being operable upon an impulse of one characteristic, and another upon an im-,

pulse of another characteristic, one of said means being controlled by the stepping means.

96. In apparatus or the kind described, in combination, a machine element, means for stepping the same forward uniformly by each one of a series of codally arranged impulses of dilierent characteristics, retaining means, and a plurality of means for disengaging said retaining means, one of said means being operable upon an impulse of any characteristic and the other upon an impulse of a certain charaeteristic,-one of said means being controlled by the stepping means. v

97. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward by a c odally ar ranged series of impulses of different characteristics, retaining means, a plurality of movable means for disengaging said retaining means, said last named means adapted to have mutual interfering action ,upon each other, and the disengaging or interfering action or said means being determined by their relative movements and the character of the impulse upon which said movement takes place, one of said means being controlled by the stepping means. 7 4 a 98. In an apparatus ofthe class described, in combination, a machine element, means for stepping it uniformly by each one of a codally arranged series otimpulses of different characteristics, means for effecting the return of the machine element to normal upon an impulse of one characteristic out of its codal' relation, and means efi'ecting-the return of the machine element to normal upon an impulse of different characteristic out of its codal relation, one of said means being controlled by the machine element,.the other by the stepping means.

99. In apparatus of the kinddescribed, in combination, ainachinc element, means for stepping it uniformly by each one of a codally arranged series of impulses of difierentcherscterist-ics, retaining means, menus adopted to ntlect the retaining means to permit 'the'return of said member upon an impulse of one characteristic out of its codel relation, and other means adapted to client the retain ing means to permit the return of said mem her upon an impulse of aruotherehareeteristic out of its ,codel relation, one of said means being controlled by the machine ele- 11181113, the otherhy the stepping means.

100. In apparatus of the kind described, in combination, 2- machine element, means for steppingit by each one of e cod'olly arranged series of: impulses of dillerent characteristics, means efl'ecting the return of said element to normal upon an impulse or given characteristic out of its code-l relation, and other means efiecting the return of. the el ment to normal upon an impulse of :1 given different characteristic out. of its codsl relm tion, one of said means adapted to negative the effect of the other When the impulse is of a certain characteristic, one of said means being controlled by the machine element,

the other by the steppingmeans.

101. In apparatus ofthe kind described, in combination, a machine element, means for stepging it by-eaoh one of a codally or ranged seriesoit' impulses of different charscteristics, means effecting the return of said element to normal. upon an impulse of given characteristic out of its codal relation, and

other means effecting the return of the element; to normal upon' an impulse of e given dillerent characteristic out of its code-l re lotion, one of said means adapted to negative the effect of the other when they occupy certain positions, one of said means being controlled bythe machine element, the other by the stepping means.

102. In snpni'atns ofthe kind described, in combination, a machine element. means for stepping it by each one of ecodally no ranged series of impulses of different characteristics, means ellecting the return of said elementto normal upon an impulse oi? given characteristic out of its codal relation, and other means effecting the return of the ele ment to normal upon an impulse of a given different characteristic out of its codul relation, one of said means adapted to negative the effect of the other when they occupy certain positions and when the impulse is of c certain characteristic, one of said moons being controlled hy the machine element, the other bythe stepping means. i

103. In apparatus oil-the kind described, in combination, a, machine element, means adapted to step the some forward by e co dolly arranged series of impulses of different by the stepping means.

upon an impulse of different characteristic out of its eodal relation, one of said means being controll d by the muchine element, the other icy the stepping means.

104. in sppurstus of the kind described, in combination, a machine element, means for stepping the sameiorn'srd by a codally urrzmged series of impulses oi different churzn'teristies, retaining means/means for l eid retaining means upon an e oi given characteristic out of its lotion, and other mens for disen: said retaining means .upon an impulse of different characteristic out of its social relation, one of said less numedzmeans adopted to negative the 'efiec-t, of the other when the impulse is of a. given choructeris' tic, one of said means being controlled. by

11g means;

1.05. in apparatus of the kind described, in combination, s machine element, means for stepping it forward by each one ofe codally wronged series of impulses of differentehnrecteristics, retaining means, means for; disengaging said retaining meeusgupon an impulse of any characteristic, and means adapted to negative the efiect of saidilast named mee'ns when said impulse iswjof. a given characteristic, one olis'i-id'mesns being controlled by the machine element, the other 10%. in apparatus of the kind described, in combination, s machine element, means the some forward by each one of 1-. codeiupon an impulse of any characteristic, and means adapted to negative the effect of said lest named means when. said impulse is long, one of said menus belo controlled by the machine element, the other by the stepping means.

107. in apparatus of the kind described, in combination, machine element, means for moving the some forward by each one of s codslly urrun 'ed series of impulses of diflerent characteristics, retaining means, means for disengaging said retaining means upon a long impulse, and means adapted to negative the effect of said last named means when said impulse is made in its codal relation, one of said means being controlled by the machine element, the other by the stepping means I 108. 'ln apparatus of the kind described, in combination, a machine element, means for she-p ning the some forward by each one of a coduily arranged series of impulses of different characteristics, retaining means, and a. plurality of means for disengaging said retaining means, one of said means beerrungedscries of impulses of. dlfierent characteristics, retaining means, means tor disengaging 531d retaining means has of another characteristic, one of said means being controlled by the machine element, the other by the stepping means.

109. In apparatus of the kind described, in combination, a machine element, means for stepping the same forward by each one of a series of codally arranged impulses of difi'erent characteristics, a retaining means, and a plurality of means for disengaging said retaining means, one of said means being operable upon an impulse of any characteristic and the other upon an impulse of a certain characteristic, one of said means .being controlled by the machine element, the

other by the stepping means.

110. In apparatus of the kind described,

in combination, a machine element, means 

